1. Department of Circulation and Medical Imaging; Faculty of Medicine; Norwegian University of Science and Technology; Trondheim Norway
2. Department of Cardiothoracic Anaesthesia and Intensive Care; St. Olavs University Hospital; Trondheim Norway
3. Clinic of Anaesthesia and Intensive Care; St. Olavs University Hospital; Trondheim Norway
4. Clinic of Cardiothoracic Surgery; St. Olavs University Hospital; Trondheim Norway
5. Department of Laboratory Medicine; Children's and Women's Health; Faculty of Medicine; Norwegian University of Science and Technology; Trondheim Norway
6. Department of Immunology and Transfusion Medicine; St. Olavs University Hospital; Trondheim Norway